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Enrique Arrieta Diaz (Universidad del Magdalena)29/11/2021, 08:30
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David Tarazona29/11/2021, 09:00
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Juan Diego Soler29/11/2021, 10:20
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Valerie Domcke (CERN)29/11/2021, 11:20
Cosmic strings arise as remnants of phase transitions in the early Universe, often related to theories of grand unification (GUTs). If such a phase transitions occurs at high energies, the resulting cosmic string network generates a sizable amount of gravitational waves. Most work so far has focused on the gravitational wave signal from topologically stable cosmic strings. In this talk I will...
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Alexis Pompili (Universita e INFN, Bari (IT))29/11/2021, 14:00
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Pedro Podesta Lerma (Universidad Autonoma de Sinaloa (MX))29/11/2021, 14:30
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Alberto Correa Dos Reis (CBPF - Centro Brasileiro de Pesquisas Físicas (BR))29/11/2021, 15:00
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Santiago Gomez Arias29/11/2021, 15:30
La universalidad leptónica implica que los bosones gauge están acoplados por igual a las tres familias de leptones. Esta característica está implícita en el modelo estándar el cual es nuestro modelo actual en física de partículas. Los test de universalidad leptónica consisten en encontrar alguna anomalía con respecto a lo predicho por el modelo estándar, por esta razón estamos interesados en...
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Nestor Quintero Poveda (Universidad Santiago de Cali)29/11/2021, 16:05
Experimental measurements collected by the BABAR, Belle, and LHCb experiments on different observables associated with semileptonic $B$ meson decays, indicate the existence of disagreement with the Standard Model (SM) predictions. We reexamine the new physics scenario in which the SM is extended by a singlet vector leptoquark (LQ) with a TeV-scale mass to accommodate the above mentioned...
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Eduardo Rojas (Universidad de Nariño)29/11/2021, 16:25
Based on the generalized quantum electrodynamics expression for the Podolsky propagator, which preserves gauge invariance for massive photons, we propose a model for the massive gluon propagator that reproduces well-known features of established strong-interaction models in the framework of the Dyson-Schwinger equation. By adjusting the Podolsky mass and the coupling strength we thus construct...
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José Herman Muñoz (Universidad del Tolima)29/11/2021, 16:45
We study the nonleptonic weak decays V_1→ V_2 M, where V_1 is a vector heavy meson as D_((s))^,J/Ψ,B_((s))^,B_c^*,Υ(1S); V_2 is a vector meson and M is a pseudoscalar or vector meson. We calculate the tree-level contribution to these decays given by the transition vector-to-vector, V_1 → V_2, using the covariant light-front quark model to evaluate the form factors. We find that some...
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Camilo Jose Torres Castano (Universidad de Antioquia (CO))29/11/2021, 17:05
The description of some $B^{+}$ meson production studies is presented, which are based on an event sample of pPb collisions at a center-of-mass energy of $\sqrt{s_{NN}} = 8.16$ TeV, collected by CMS detector at the CERN LHC during 2016 and corresponding to an integrated luminosity of $189.7$ nb$^{ - 1}$. The $B^{+}\rightarrow J/\psi \ K^{+}$ and $J/\psi \rightarrow \mu^{+}\mu^{-}$ decays are...
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Andres Munoz Acevedo (Universidad de Antioquia (CO))29/11/2021, 17:25
Preliminary results about the prompt production of some heavy quarkonium states are presented, which are based on an event sample of pPb collisions at a center-of-mass energy of 8.16 TeV, collected by CMS detector during 2016 and corresponding to an integrated luminosity of 180 nb$^{-1}$. $\chi_{c1}\rightarrow$ J/$\psi \gamma$ and $\chi_{c1}\rightarrow$ J/$\psi \gamma$ decays are used for...
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nobuo sato (jlab)29/11/2021, 17:45
A new era for the exploration of hadron structure has begun with the Jefferson Lab 12 GeV program and the planned Electron Ion Collider. The new generation of experiments will allow us to probe the quantum correlation function (QCFs) of quarks and gluons that emerges from the theory of strong interactions. Since these QCFs are not direct physical observables, the experimental data needs to be...
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David Alejandro Baron Ospina29/11/2021, 18:05
The charmonium decay and production can be modeled using nonrelativistic QCD factorization. This factorization consists of some long-distance matrix elements and a set of constants that must be fixed by the short-distance dynamics. The current work is focused on reviewing the short distance constants’ computation for the B decays into charmonium at NLO using covariant projectors, and their...
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Sebastian Ordonez29/11/2021, 18:10
The selection of $D^{+}\longrightarrow K^{−}K^{+}K^{+}$ candidates is performed using a multivariate analysis. The study is based on a sample of pp-collision data, collected at a centre-of-mass energy of 13 TeV with the LHCb detector in 2016. Different multivariate classifiers are considered and their signal-background discrimination performance is evaluated. The signal significance is...
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Cristian Harold GARCIA DUQUE (Universidad del Quindío)29/11/2021, 18:15
In recent years, evidence of Lepton Flavour Universality Violation has been observed in semi-leptonic decays associated with the charged-current transition 𝑏→𝑐𝑙𝜈 ̅ by BABAR, Belle and LHCb experiments, up to 3 standard deviations (3σ). While for the neutral-current transition 𝑏𝑏 ̅→𝑙^+ 𝑙^−, the BABAR collaboration in 2020 reported a discrepancy of 1.8σ in the leptonic decay of the ϒ(3s) meson....
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Pedro Jose Leal Mesa (Universidad Nacional de Colombia (CO)), Mr Pablo Jose Figueroa Falla (Universidad Nacional de Colombia (CO))29/11/2021, 18:20
Heavy mesons (quarkonia) behavior is a challenge because of the limitations of the QCD theory at low energies; that is why We propose as a simple approximation to use a nonrelativistic Hamiltonian, which has two divisions: for the close interaction, the Hulthen potential and the distant interaction a root confining potential, theses contributions are neccesary to determine the mass spectra of...
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David Alejandro Baron Ospina29/11/2021, 18:25
The modeling of heavy hadrons into light ones’ decay modes presents a problem, the weak dynamics factorization. There are some proposals for it, for instance, the MMM (Multi Meson Model) applied to D-> KKK, models the weak part of the amplitude using D's decay constant and its momentum. This is possible as long as the main contribution to the amplitude comes from the annihilation topology, D->...
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Ms Fabiola Amazo-Gómez (Universidad Nacional de Colombia)29/11/2021, 18:30
I will present a simple exploration to the physics of charmonium, i.e., mesonic states which are not simply charm - anticharm configurations. I will describe the most popular configurations proposed for these states. I will then show how these states can be produced in hadronic collisions and in heavy ion collisions, both in central and peripheral reactions.\
A review of the states for the...
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Mr Andres Aponte Mendivelso (Universidad Distrital Francisco José de Caldas)29/11/2021, 18:35
Se presenta un estudio preliminar sobre la violación de la simetría CP en los decaimientos de los mesones D^+\rightarrow K^+K^-K^+\ \ y\ \ D^-\rightarrow K^-K^+K^-, donde a partir de un Monte Carlo se hace una simulación de estos decaimientos en un Dalitz Plot, y se realiza mediante el modelo Isobar un análisis de la amplitud para los decaimientos del D^+ y D^-.
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Steven Lowette (Vrije Universiteit Brussel (BE))30/11/2021, 08:00
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Genevieve Belanger30/11/2021, 08:30
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Dr Luca Visinelli (Shanghai Jiao Tong University)30/11/2021, 09:00
The status of the current and future searches of light bosons is reviewed. I will focus on light bosons acting as the dark matter or the dark energy in the Universe
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Brian Shuve (Harvey Mudd College)30/11/2021, 09:30
Many scenarios of physics beyond the Standard Model predict new particles with
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masses well below the electroweak scale. Low-energy, high luminosity colliders such as BaBar are ideally suited to discover these particles. We present several recent searches for low-mass dark sector particles at BaBar, including leptophilic scalars, self-interacting dark matter bound states, and axion like... -
Valentina De Romeri (IFIC CSIC/UV Valencia)30/11/2021, 09:50
Primordial black holes (PBHs) are a potential dark matter candidate whose masses can span over many orders of magnitude. If their masses lie in the $10^{15}-10^{17}$ g range, they can emit sizeable fluxes of MeV neutrinos through evaporation via Hawking radiation. We investigate the possibility of detecting light (non-)rotating PBHs with future neutrino experiments DUNE and THEIA. We show that...
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Prof. Roberto Lineros30/11/2021, 10:35
Dark Matter and neutrinos are one of the most puzzling components of the Universe. We study a realization of the scotogenic model for neutrino masses using a $U(1)$ gauge symmetry between muon and tau fermion. The model contains 3 possible WIMP Dark Matter candidates: A majorana fermion, a CP-even and a CP-odd scalar. We consider a basic set of observables to constrain the model, and we make...
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David Suárez (Universidad de Antioquia)30/11/2021, 10:55
We propose a model with spin 3/2 fermions and vector doublets. We compute neutrino masses via radiative seesaw mechanism. We investigate the consequences of the model in the dark matter relic abundance. Furthermore, we implement the Casas-Ibarra parametrization to constraint the parameter space considering theoretical constraints. We also analyze the parameter space for direct detection of dark matter.
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Daniel Ocampo Henao (Universidad de Antioquia (CO))30/11/2021, 11:15
We study the possible searches of dark matter at colliders using Vector Boson Fusion topology in the context of Simplified Models signatures. We examine the possible physics reach of these searches with regard to monojet-type searches, and determine how these two signatures might be complementary.
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Anderson Alexis Ruales Barbosa (Universidad de Antioquia (CO))30/11/2021, 11:35
A proposal is presented for a dark matter (DM) signal search with the Phase-2 CMS Detector at the high luminosity LHC. The model under study includes a scalar field and new particles heavy fermions. Deep neural networks are constructed for the study of the experimental signature consisting of one or two muons in the presence of lost transverse moment. The results of these models are compared...
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Mr Diego Alejandro Ríos Pérez (Universidad de Antioquia)30/11/2021, 11:55
In recent years the multicomponent scalar dark matter models with discrete symmetries $\mathbb{Z}_N$ has been widely studied in the literature. Among them, the $\mathbb{Z}_5$ model proposes two complex fields that transform as singlets under the gauge group of Standard Model. The model has eleven free parameters that must be restricted. In that sense, the main purpose of this research is to...
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Jose Halim Montes de Oca Yemha (Universidad Nacional Autónoma de México)30/11/2021, 12:00
We consider a model with Left-Right symmetry with $SU(3)C\times SU(2)_R\times SU(2)_L\times U(1)_{Y^\prime}$ gauge group that includes an additional fermions which are charged under the $SU(2)_R$. The model and their fields charged under $SU(2)_R$ are known as Left−Right Mirror Model (LRMM) and mirror fermions, respectively. Although the motivation for introducing LRMM was to analyze the CP...
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Dr Mario Lamprea30/11/2021, 12:05
In canonical Left-Right gauge model with only one $SU(2)_L $ Higgs doublet and one $SU(2)_R$ scalar doublet, there is no tree level fermion masses. The universal scotogenic Left-Right gauge model is able to generate all the SM fermion masses radiatively via a dark sector generated through a $U(1)_D$ global dark symmetry. We study the dark matter phenomenology in this model, performing a...
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Belcy Rocío Portilla Rojas30/11/2021, 12:10
Actualmente se considera que la materia oscura (DM) es uno de los principales componentes del universo, sin embargo, su origen y naturaleza sigue siendo una pregunta abierta, ya que la DM no forma parte del modelo estándar de las partículas elementales (SM). En este trabajo se propone que la DM se genera, no en un escalar, sino por co-aniquilación de neutrinos pesados de Majorana, a través del...
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Kendall Mahn (Michigan State University)30/11/2021, 14:00
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Patricia Vahle30/11/2021, 14:30
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Minerba Betancourt (Fermilab), Minerba Betancourt30/11/2021, 15:00
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Jonathan Paley (Fermi National Accelerator Lab. (US))30/11/2021, 15:30
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Dr Bei-Zhen Hu (National Taiwan University), JUNO Collaboration30/11/2021, 16:15
The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment under construction at a baseline of roughly 52.5 km from 8 nuclear reactors in China. JUNO will use an acrylic sphere containing 20 kton of liquid scintillator surrounded by about 18,000+25,000 (20-inch + 3-inch) photomultiplier tubes immersed in ultrapure water as the primary neutrino target. In...
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111. Improved Inverse Beta Decay event selection and its impact on the PROSPECT oscillation analysisDiego Venegas Vargas30/11/2021, 16:35
The Precision Reactor Oscillation and Spectrum Experiment (PROSPECT) is an above-ground antineutrino experiment at short baselines located at the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory (ORNL). The PROSPECT detector comprises 4-tons of Li-6 doped liquid scintillator (6LiLS) divided into an 11x14 array of optically separated segments. This experiment's physics goals...
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Yuber Perez30/11/2021, 16:55
The expected capabilities of Liquid Argon Time projection Chambers (LArTPCs) will allow for an impressive reconstruction of sub-GeV atmospheric neutrinos interactions in the future DUNE experiment. Since standard oscillations of atmospheric neutrinos are crucially dependent on the matter profile of the Earth, it will be possible to study the interior of our planet. Considering a realistic...
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Youssef Sarkis Mobarak (Instituto de Ciencias Nucleares UNAM)30/11/2021, 17:15
The nuclear recoil ionization efficiency or "quenching factor" (QF) plays a crucial role in low-threshold ionization type detectors used in dark matter searches, CE$\nu$NS detection, and in searches for new physics through this channel. We study the ionization efficiency of nuclear recoil in pure materials using a model based on Lindhard´s theory. We include the effect of atomic binding...
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Ibahim Safa30/11/2021, 17:35
Ultra-high energy neutrinos (>10^16 GeV) are expected to be produced through cosmic-ray interactions with the Cosmic Microwave Background (CMB). This so-called cosmogenic flux of UHE neutrinos is a target of the next generation neutrino observatories: IceCube-Gen2, TAMBO, RNOG, GRAND, POEMMA, and CHANT. Many of these detectors rely on measuring the neutrino interaction either directly at the...
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Simona Ilieva Ilieva (University of Sofia - St. Kliment Ohridski (BG))30/11/2021, 17:55
SND@LHC is a compact and stand-alone experiment to perform measurements with neutrinos produced at the LHC in a hitherto unexplored pseudo-rapidity region of 7.2 < 𝜂 < 8.6, complementary to all the other experiments at the LHC. The experiment is to be located 480 m downstream of IP1 in the unused TI18 tunnel. The detector is composed of a hybrid system based on an 800 kg target mass of...
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Dr Mattia Beretta (University of California Berkeley), CUORE Collaboration30/11/2021, 18:15
The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for 0νββ decay that has been able to reach the one-tonne mass scale. The detector, located at the LNGS in Italy, consists of an array of 988 TeO2 crystals arranged in a compact cylindrical structure of 19 towers. CUORE began its first physics data run in 2017 at a base temperature of...
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Pavel Zhelnin30/11/2021, 18:35
IceCube’s discovery of astrophysical neutrinos, and subsequent characterization of their energy spectrum up to a few PeV, has provided a new window to the high-energy Universe. A series of next-generation experiments aim to discover neutrinos with ultra-high energies, optimizing their sensitivity in the EeV range. However, many opportunities for discovery still remain in the study of the...
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Hernan Pablo Wahlberg (National University of La Plata (AR))01/12/2021, 08:00
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Seema Sharma (Indian Institute of Science Education and Research (IN))01/12/2021, 08:30
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Sebastian Ordonez01/12/2021, 09:00Short Talk (5')
The second largest background of this $W^{\pm}jj-EW$ signal originates from misidentified leptons, also known as non-prompt leptons. One approach employed to properly estimate this background is the data-driven fake factor method, which requires fake factors extracted from a defined control region. In this work, two trilepton validation regions were defined in order to test the fake factors...
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Laura Juliana Caviedes Betancourt (Universidad Nacional de Colombia (CO))01/12/2021, 09:05
This work pretends to study the boosted Higgs boson calibration using Z + jets events by optimizing the signal significance after tagging this topology data with the objective that allows others to investigate this type of decay for different processes. Besides, this project also focuses on the automation of the event selection in this tagger to allow the code to be safe and robust to errors,...
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Rafael Andrei Vinasco Soler (Universidad Nacional de Colombia (CO))01/12/2021, 09:10
Los métodos de identificación de partículas son una herramienta poderosa para filtrar datos no deseados y con ello mejorar los resultados finales del experimento. En este caso en conciso, se estudiara el rendimiento de distintos métodos de identificación de bosones W en eventos de colisiones del experimento ATLAS, tomando especial atención a los métodos basados en el llamado Plano de Lund, el...
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Neidy Lorena Bucuru Rodriguez (Universidad Nacional de Colombia (CO))01/12/2021, 09:15
Las actualizaciones que se están desarrollando en el LHC, permitirán un incremento de las colisiones de protones en el acelerador de partículas. El incremento de la luminosidad instantánea, permitirá investigar fenómenos físicos poco frecuentes, obtener medidas más precisas de los fenómenos ya conocidos e incluso investigar eventos más allá del modelo estándar. Satisfacer los requerimientos...
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Carlos Fernando Buitrago Cardenas (Universidad Nacional de Colombia (CO))01/12/2021, 09:20
El upgrade ATLAS HL-LHC permitirá que algoritmos de reconstrucción de jets similares a aquellos utilizados de forma offline sean implementados a nivel del Trigger más bajo. Estos algoritmos tienen como objetivo reconstruir parámetros de los jets de forma precisa de tal forma que sea posible maximizar la coherencia entre los datos del trigger y aquellos seleccionados en el análisis. El...
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Juan David Villamil Santiago (Universidad Nacional de Colombia (CO))01/12/2021, 09:25
En el mundo digital actual, los numerosos cambios transforman constantemente la forma de manejar, almacenar y distribuir datos, y el surgimiento de nuevas infraestructuras computacionales y servicios remotos posibilita realizar distintas tareas de manera virtual, sin contar con recursos computacionales sofisticados. Esto resulta especialmente útil en análisis con datos abiertos de los...
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Miguel Angel Garcia Ruiz (Universidad Nacional de Colombia (CO))01/12/2021, 09:30
El procesamiento y análisis de datos está tomando cada vez mayor relevancia en el campo de la investigación científica, por lo que actualmente se busca facilitar el desarrollo de herramientas que realicen estos análisis sin la limitación de la infraestructura computacional personal que pueda llegar a tener un usuario. Así, el desarrollo y uso de herramientas de software que provean un servicio...
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Juan Manuel Moreno Perez (Universidad Nacional de Colombia (CO))01/12/2021, 09:35
En física de partículas los algoritmos computacionales son fundamentales para seleccionar eventos interesantes para estudiar, esto se hace reduciendo la cantidad de eventos de fondo en cualquier muestra. Este proyecto intenta utilizar las muestras proporcionadas por el desafío LHC Olympics del 2020 para optimizar un análisis multivariado de tipo BDT capaz de separar los eventos de señal y...
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Andres Felipe Duque Bran (Universidad Nacional de Colombia (CO))01/12/2021, 09:40
In the process of measuring the beam status and the luminosity during the Run 3 of the Large Hadron Collider, at the interaction point of the LHCb experiment is projected the Probe for Luminosity Measurement (PLUME) detector. Through the use of Geant4 simulations, the adjacent effects to the operation point are studied by means of the Cherenkov light emitted by particles coming from the...
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Harold Guerrero De La Cruz (University of Puerto Rico (PR))01/12/2021, 09:45
The High Luminosity Large Hadron Collider (HL-LHC) will produce at least 250 inverse femtobarns of data per year. In order to analyze this data, we need to produce a substantial number of events. This possesses a considerable challenge to the already-optimized full CMS detector simulation that uses Geant4. One avenue being explored is modifying the simulation parameters to process events even...
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Juan Manuel Moreno Perez (Universidad Nacional de Colombia (CO))01/12/2021, 10:15
Podio is an EDM tool that generates all code from YAML descriptions. As part of the Key4Hep project it is necessary that it has some tools that are already available in the iLC software, we present advances made during the summer student project implementing tools similar to anajob and dumpevent.
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Santiago Duque Escobar (Universidad de Antioquia (CO))01/12/2021, 10:20
In the field of High energy physics, there are many tools used to perform the statistical analysis needed to do experimental and phenomenological research in that field. Inside of the CMS collaboration, Combine tool is heavily used to produce binned statistical models. Although Combine is open source and is based in other open source tools as RootFit, RooStats and is build over HistFactory,...
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Maria Camila Diaz Sanchez (Universidad Nacional de Colombia)01/12/2021, 10:25
In recent years there has been a reproducibility crisis in most science fields, where researchers fail to reproduce other researchers and their own experiments. In HEP, the computational analysis of the data obtained from experiments, such as the LHC, is the new concept of a experiment. The computational experiments are bounded to the environment and equipment used to perform the analysis....
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14. Testbeam results of 3D silicon sensors for the Inner Tracker system of the Phase-2 CMS detector.Alexis Javier Aguirre Narvaez (University of Puerto Rico (PR))01/12/2021, 10:30
This presentation describes the test beam studies of 3D silicon sensors (pitch 50x50 µm2 ) exposed to a 120 GeV proton beam at the Fermilab Test Beam Facility. We show the pixel efficiency, cluster size and hit resolution before and after irradiation. The 3D silicon sensors are considered for the innermost layers of the Inner Tracker (IT) of the Phase-2 upgrade of CMS Detector. This detector...
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Catalina Moreno Sarria (Universidad Nacional de Colombia (CO))01/12/2021, 10:35
Forward photons and electrons in the LHCb experiment are detected with the inner modules of the EM calorimeter. However, the granularity of the cells makes difficult to detect precisely the shape of the showers produced by those particles. Then, photons and electrons candidates are hard to differentiate especially when nearly collinear particles hit the calorimeter. Simulations in Geant4 of...
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Ana Maria Rodriguez Vera (York University (CA))01/12/2021, 10:55
Among the outstanding questions of particle physics, proof of the existence of a magnetic monopole is still one of great interest. Not only would the observation of a magnetically charged particle bring symmetry between electric and magnetic fields in Maxwell’s equations, but it would also explain the quantization of the electric charge. TeV-mass Dirac Magnetic Monopoles, which behave as a...
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Maria Moreno Llacer (Univ. of Valencia and CSIC (ES))01/12/2021, 11:15
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Bobby Samir Acharya (Abdus Salam Int. Cent. Theor. Phys. (IT))01/12/2021, 14:00
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Carlos Sandoval Usme (Universidad Nacional de Colombia)01/12/2021, 14:15
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Carlos Sandoval Usme (Universidad Nacional de Colombia)01/12/2021, 14:35
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Nicolás Bernal (Universidad Antonio Nariño)01/12/2021, 15:00
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Ms Natalia Rivera01/12/2021, 15:20
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Carlos Sandoval Usme (Universidad Nacional de Colombia)01/12/2021, 15:40
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Carlos Sandoval Usme (Universidad Nacional de Colombia)01/12/2021, 16:00
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Santiago Gonzalez-Gaitan (CENTRA, Instituto Superior Tecnico)02/12/2021, 08:00
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Matthew Strait (University of Minnesota)02/12/2021, 08:30
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Karen Salome Caballero Mora (UNACH)02/12/2021, 09:00
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Yeinzon Rodriguez Garcia02/12/2021, 09:45
This talk will be split into three pieces. In the first part of the talk, I will introduce the common ideas surrounding the modified gravity proposals starting from their main motivation: Einstein gravity, despite all its success on the observational side, is an effective theory. In the second part of the talk, I will present the recent reconstruction of the generalized SU(2) Proca theory...
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Carlos Nieto02/12/2021, 10:05
In this work, we explore the construction of a vector-tensor theory with a SU(2) global symmetry in the vector sector as a proposal for a modified theory of gravity. We start with a general Lagrangian containing terms involving symmetric and antisymmetric combinations of the covariant derivatives of the field. Then, we study the degeneracy of the full theory to determine whether it can be...
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Gabriel Gómez02/12/2021, 10:25
In the context of quintessence, the inclusion of new degrees of freedoms to the matter sector might produce additional imprints on cosmological observables while keeping the scalar field responsible for the quintessence and the standard matter minimally coupled to gravity. We investigate this premise by including a canonical SU(2) Yang-Mills field to the total content of the universe coupled...
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Basabendu Barman02/12/2021, 10:45
We study the freeze-in production of vector dark matter (DM) in a classically scale invariant theory, where the Standard Model (SM) is augmented with an abelian $U(1)_X$ gauge symmetry that is spontaneously broken due to the non-zero vacuum expectation value (VEV) of a scalar charged under the $U(1)_X$. Generating the SM Higgs mass at 1-loop level, it leaves only two parameters in the dark...
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Andre De Gouvea (Northwestern University)02/12/2021, 14:00
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Cecilia Lunardini (Arizona State University)02/12/2021, 14:30
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Omar Miranda (Cinvestav)02/12/2021, 15:00
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Antonio Enrique Cárcamo Hernández02/12/2021, 15:30
In this talk I will describe a theory where the Inverse seesaw mechanism is implemented not only in the neutrino sector but also in the SM charged fermion sector in order to explain the pattern of SM fermion masses. To the best of my knowledge, that model corresponds to the first implementation of the inverse seesaw mechanism for the charged fermion sector. I will discuss its implications in...
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Dr Arbelaez Carolina (Universidad Tecnica Federico Santa Maria)02/12/2021, 16:10
Lepton number violation (LNV) is usually searched for by the LHC collaborations using the same-sign di-lepton plus jet signature. We discuss multi-lepton signals of LNV that can arise with experimentally interesting rates in certain models of neutrino mass generation. Interestingly, in such models the observed smallness of the active neutrino masses, together with the high-multiplicity of the...
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Omar Suarez-Navarro (PUCP)02/12/2021, 16:30
We show the analisis to one-loop light neutrino mass considering the Type-I Seesaw Model. In our work we have two parts: with and without SUSY. The mass insertion approximation method is applied to calculate the one loop corrections in SUSY considering diagrams that contain lepton number violation terms in order to observe its effects on the light neutrinos masses. In Non-SUSY case ($3+2$ ...
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Mr Pablo Candia (The University of Manchester)02/12/2021, 16:50
Cherenkov neutrino detectors offer a powerful tool to study long-lived particles that are produced in the decay of mesons from atmospheric showers. In this talk, we explain this approach by considering the lightest neutralino in the context of R parity violating (RPV) supersymmetry, and show how to use Super-Kamiokande atmospheric neutrino data to place constraints on the parameter space of...
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Diyaselis Delgado Lopez (Harvard University (US))02/12/2021, 17:10
Dark matter (DM) particles are predicted to decay into Standard Model particles which would produce signals of neutrinos, gamma-rays, and other secondary particles. Neutrinos provide an avenue to probe astrophysical sources of DM particles. We review the decay of dark matter into neutrinos over a range of dark matter masses from MeV/c2 to ZeV/c2. We examine the expected contributions to the...
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Blanca Cecilia Cañas Orduz (Universidad de Pamplona)02/12/2021, 17:30
The recent COHERENT collaboration results on the neutrino-nucleus coherent elastic scattering boosted the interest in this line of research. We will address some aspects of the neutrino-nucleus coherent elastic scattering, the impact of the actual measurements, the proposals for future investigations to observe this process within the standard model and beyond.
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Mrs Ninibed Yelitza Gonzalez Villamizar (Universidad de Pamplona)02/12/2021, 17:35
Dentro de los bloques constitutivos de la materia se encuentran los neutrinos, su estudio ha jugado un papel principal no sólo a la hora de confirmar las predicciones teóricas del modelo estándar (ME), sino también en la búsqueda de nueva física (NF). Una de las evidencias más claras de NF que tenemos hasta la fecha, se conoce como oscilaciones de neutrinos.
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Actualmente la física de... -
Mr Neider Yesith Olivo Marcelo (universidad de pamplona)02/12/2021, 17:40
Durante esta charla presentaré los avances realizados de mi trabajo de investigación de grado. Iniciaré con una descripción de la dispersión elástica coherente neutrino-núcleo (CevNS), en particular, mostraré el desarrollo del cálculo de la sección eficaz de este proceso. Posteriormente se abordará el análisis estadístico $χ2$ que nos permitirá restringir parámetros fundamentales del Modelo...
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Silvia Lucia Correa Angel (USCO)02/12/2021, 17:45
Para explicar los resultados experimentales de las oscilaciones de los neutrinos es necesario considerar que estas partículas sean masivas; no obstante, el modelo estándar de la física de partículas elementales, el esquema teórico más exitoso que explica con buena precisión tres de las cuatro interacciones fundamentales de la naturaleza ,asume que los neutrinos son partículas sin masa.
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La... -
Jose Ruiz (Universidad de Antioquia (CO))02/12/2021, 18:30
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Jose Valle03/12/2021, 08:00
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Pablo Roig03/12/2021, 08:30
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Ivan Arraut03/12/2021, 09:00
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Rodolfo Capdevilla03/12/2021, 09:30
The Fermilab Muon g−2 collaboration has recently released its first measurement of (g−2)μ. This result is consistent with previous Brookhaven measurements and together they yield a statistically significant 4.2σ discrepancy with the Standard Model prediction. BSM solutions to (g−2)μ feature light weakly coupled neutral particles (Singlet Scenarios) or heavy strongly coupled charged particles...
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Prof. Richard Benavides (ITM)03/12/2021, 10:05
We study the possibility of obtaining the standard model of particle physics as an effective theory of a more fundamental one, whose electroweak sector includes two non-universal local U(1)'s gauge groups.
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Tomás Antonio Valencia Pérez (FESC-UNAM)03/12/2021, 10:25
We present a pedagogical Mathematica package, so-called SpaceMath, for Beyond the Standard Model (BSM) parameter space searches. In this first version, SpaceMath v1.0 works with the Higgs boson data (HBD). These results are the most up-to-date experimental measurements made at the Large Hadron Collider (LHC) and the expected results at future colliders, namely, High Luminosity LHC, High Energy...
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Dr Andres Gómez Quinto (Universidad del Atlantico)03/12/2021, 10:45
we investigate the consequences of the Renormalization Group Equation (RGE) in the determination of the effective potential and the study of Dynamical Symmetry Breaking (DSB) in a massless Abelian Higgs (AH) model with N-component complex scalar field in (3+1) dimensional spacetime. The classical Lagrangian presents scale invariance, which is broken by radiative corrections to the effective...
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Tomas Atehortua Garces (Universidad de Antioquia (CO))03/12/2021, 11:05
The $R_{D^{(\ast)}}$ Anomaly is a taint in the Lepton Flavor Universality. With recent data the anomaly has a statistical significance more than $3 \sigma$ between BaBar, LHCb and Belle. Many theoretical models had been proposed to solve this problem, extending the Standard model in different sectors. In this talk we will discuss about the road to look for a charged mediator in two different...
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76. Cálculo del Potencial cuántico de Broglie Bohm para un oscilador armónico dependiente del tiempoDr Jairo Alonso Mendoza Suárez (Universidad de Pamplona)03/12/2021, 11:25
El oscilador armónico es uno de los temas fundamentales que es punto de partida para el estudio de diversas ramas de la física, desde el estudio en la mecánica clásica hasta el estudio en mecánica cuántica, por tanto, ha sido estudiado exhaustivamente. En este trabajo se resuelve la ecuación de Schoringuer unidimensional en el enfoque de Madelung-Bohm para la mecánica cuántica, el ansatz que...
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Yithsbey Giraldo Úsuga (Universidad de Nariño)03/12/2021, 11:30
We review in a systematic way how anomaly free $SU(3)_c\otimes SU(3)_L\otimes U(1)_x$ models without exotic electric charges can be constructed, using as basis closed sets of fermions which includes each one the particles and antiparticles of all the electrically charged fields. Our analysis reproduce not only the known models in the literature, but also shows the existence of several more...
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Dr Juan Carlos Montenegro03/12/2021, 11:35
A model is proposed where the fermionic and scalar fields are charged under a Peccei-Queen (PQ) symmetry. The PQ charges are chosen in such a way that they can reproduce mass matrices with five texture zeros that can reproduce the masses of the Standard Model (SM) fermions, the CKM matrix and the PMNS matrix. To obtain this result, at least 4 Higgs doublets are needed. As we will see in the...
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German Zambrano03/12/2021, 11:40
The generalized symplectic formalism quantization method, which is equivalent to that Dirac, is employed to study the gauge invariance Proca's electrodynamics theory on the null-plane. We show that the zero modes of the symplectic matrix are the generators of the gauge transformation. After fixing the gauge, the generalized brackets are calculated.
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Ms Laura Muñoz (Universidad de Nariño)03/12/2021, 11:45
In this work, we present a solution of the experimental anomaly in $g-2$ for the $Z^\prime$ charges allowed by the anomaly equations and the constraints coming from the Yukawa Lagrangian terms.
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The $Z^\prime$ considered here has a minimum fermion content, i.e., our models contain only the standard model fermions, 3 right-handed neutrinos, and one exotic charged lepton. The allowed parameter... -
Ricardo Andres Jaimes Campos03/12/2021, 11:50
In a model with additional U(1) gauge symmetry, free of anomalies, the mass of the active neutrinos are generated by type I see saw mechanism by introducing two right handed neutrinos. The muon and tau get mass at the tree level and the masses of the electron is generated by effective operators of dimension 7 by introducing a Lambda scale. Using a Monte Carlo, the model parameters are...
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Mr Camilo Andrés Cortés Parra (Universidad Nacional de Colombia)03/12/2021, 11:55
In a model with additional U(1) symmetry, anomaly free, the mass of the active neutrinos is generated by the inverse see saw mechanism. The muon and tau get masses at the tree level and the mass of the electron is generated by effective operators of dimension 7 by introducing a Lambda scale. Using a Monte Carlo simulation, the model parameters are adjusted according to the mass of the charged...
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JOAQUIN MASIAS TEVES (PUCP)03/12/2021, 12:00
We investigate a scenario inspired by natural supersymmetry, where neutrino data is explained within a low-scale seesaw scenario. For this the Minimal Supersymmetric Standard Model is extended by adding light right-handed neutrinos and their superpartners, the R-sneutrinos. Moreover, we consider the lightest neutralinos to be higgsino-like. We first update a previous analysis and assess to...
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KAZUHIRO TERAO (C)03/12/2021, 15:00
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Sergey Barsuk (Université Paris-Saclay (FR))03/12/2021, 16:00
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Carlos Sandoval Usme (Universidad Nacional de Colombia)03/12/2021, 17:00
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Luca Visinelli (Shanghai Jiao Tong University)
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Nicolás Bernal (Universidad Antonio Nariño)
Kinetic Misalignment Made Easy
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Marco Arroyo
The ratios $R_{\tau/P}\equiv \Gamma(\tau \to P \nu_\tau [\gamma]) / \Gamma(P \to\mu \nu_\mu[\gamma])$ ($P=\pi, K$) provide sensitive tests of lepton universality $\left|g_\tau/g_\mu\right|=1$ and are a useful tool for new physics searches. The radiative corrections to $R_{\tau/P}$ are computed following a large-$N_C$ expansion to deal with hadronic effects: Chiral Perturbation Theory is...
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